Oops, something went wrong (API console tested)

Hello – I’m crazy to get this plugin working. I have added it to this dev site http://flexicell.wpengine.com/videos and I get the famous “Oops…” message with no videos appearing. I tried running the API Explorer test and it worked OK with the credentials I have, but first it did ask me which YT profile I wanted to execute APIs under. I think this might be my entire issue. How can I assign affinity to one of the two YT/Google API profiles which point to our videos?

Channel: https://www.youtube.com/channel/UCG9SMpUIe_Z4mmlSmh7ZY3w

Thank you for any help…

https://ww.wp.xz.cn/plugins/youtube-channel/